[issue22901] test.test_uuid.test_find_mac fails because of `ifconfig` deprecation

[bru]

New submission from bru:

`test.test_uuid.test_find_mac` relies on `ifconfig` binary presence, which is on its way out. This makes the test fail on more and more Linux installations.
Using `env` (for example) is more reliable. `ip` could also be used since it's the replacement to `ifconfig`, but an always-present binary such as `env` makes it work in all cases.
This is what the (trivial) patch does.

The same reasoning applies to `uuid.getnode`: if 'Unix dll' source is not available it will try to get a MAC address 'ifconfig' which will fail, and the fallback will be `_random_getnode` (but that's another issue).

----------
components: Tests
files: fix_uuid_find_mac_test.patch
keywords: patch
messages: 231380
nosy: bru
priority: normal
severity: normal
status: open
title: test.test_uuid.test_find_mac fails because of `ifconfig` deprecation
versions: Python 2.7, Python 3.2, Python 3.3, Python 3.4, Python 3.5, Python 3.6
Added file: http://bugs.python.org/file37227/fix_uuid_find_mac_test.patch

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<http://bugs.python.org/issue22901>
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